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[Backport release-0.9] feat(highlight): Allow hyphens (-) in highlight group names (#25661)

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feat(highlight): allow hyphens (-) in highlight group names

Fixes: https://github.com/neovim/neovim/issues/23184
(cherry picked from commit f37916b93b)

Co-authored-by: Gregory Anders <greg@gpanders.com>
This commit is contained in:
github-actions[bot] 2023-10-15 14:21:54 -05:00 committed by GitHub
parent 01f1ac36a9
commit 87bfa82bdf
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4 changed files with 6 additions and 5 deletions
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4
runtime/doc/syntax.txt
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@ -188,8 +188,8 @@ thing. These are then linked to a highlight group that specifies the color.
A syntax group name doesn't specify any color or attributes itself.
The name for a highlight or syntax group must consist of ASCII letters,
digits, underscores, periods and `@` characters. As a regexp it is
`[a-zA-Z0-9_.@]*`. The maximum length of a group name is about 200 bytes.
digits, underscores, periods, hyphens, and `@` characters. As a regexp it is
`[a-zA-Z0-9_.@-]*`. The maximum length of a group name is about 200 bytes.
*E1249*
To be able to allow each user to pick their favorite set of colors, there must

4
runtime/doc/vim_diff.txt
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@ -482,9 +482,9 @@ Highlight groups:
using |n| or |N|
|hl-CursorLine| is low-priority unless foreground color is set
|hl-VertSplit| superseded by |hl-WinSeparator|
Highlight groups names are allowed to contain the characters `.` and `@`.
Highlight groups names are allowed to contain the characters `.`, `@`, and `-`.
It is an error to define a highlight group with a name that doesn't match
the regexp `[a-zA-Z0-9_.@]*` (see |group-name|).
the regexp `[a-zA-Z0-9_.@-]*` (see |group-name|).
Macro/|recording| behavior
Replay of a macro recorded during :lmap produces the same actions as when it

2
src/nvim/highlight_group.c
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@ -1947,7 +1947,7 @@ static int syn_add_group(const char *name, size_t len)
if (!vim_isprintc(c)) {
emsg(_("E669: Unprintable character in group name"));
return 0;
} else if (!ASCII_ISALNUM(c) && c != '_' && c != '.' && c != '@') {
} else if (!ASCII_ISALNUM(c) && c != '_' && c != '.' && c != '@' && c != '-') {
// '.' and '@' are allowed characters for use with treesitter capture names.
msg_source(HL_ATTR(HLF_W));
emsg(_(e_highlight_group_name_invalid_char));

1
test/functional/plugin/lsp/semantic_tokens_spec.lua
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@ -106,6 +106,7 @@ describe('semantic token highlighting', function()
exec_lua([[
bufnr = vim.api.nvim_get_current_buf()
vim.api.nvim_win_set_buf(0, bufnr)
vim.bo[bufnr].filetype = 'some-filetype'
client_id = vim.lsp.start({ name = 'dummy', cmd = server.cmd })
]])